Property Tax Estimator
Last reviewed: May 2026 · Coverage: Texas, California, Illinois, New Jersey, New York, Florida, Massachusetts, Connecticut, Pennsylvania, Ohio, Georgia
Estimate your annual property tax bill based on state-typical effective rates and homestead exemptions. This is a rough estimate for triage purposes — for precise numbers, use the local tax rate published on your county's tax bill.
How this estimate works
The calculator uses each state's typical effective tax rate (median across the state) and applicable homestead/senior exemption, then computes:
Estimated tax = (Market value − Exemptions applied) × State effective rate
State-specific defaults applied:
- Texas: ~1.9% effective rate. $140,000 General Homestead Exemption (2025 SB4 / Prop 13) + $60,000 Over-65/Disabled additional ($200K total for qualifying seniors). Applied to school district portion of bill (~50-60% of total in most TX bills); estimator approximates by applying to full bill.
- California: ~1.1% effective rate (1% rate cap + ~0.1% local debt service typical). $7,000 Homeowners' Exemption. Caveat: CA's Prop 13 acquisition-value system means long-tenured owners often pay tax on a value far below market. This estimator uses market value — long-term owners' actual bills are typically lower.
- Illinois: ~2.07% effective rate. ~$8,000 General Homestead (assumes Cook-contiguous tier; rest-of-state is $6K, Cook proper is $10K). $5,000 Senior Homestead.
- New Jersey: ~2.20% effective rate. $250 Senior/Disabled deduction (small; NJ exemption framework relies on appeals via Chapter 123 rather than exemption stacking).
- New York: ~1.6% effective rate (varies widely by locality). Basic STAR $30,000 reduction in school assessed value. Enhanced STAR $70,700 for qualifying seniors.
This is a rough estimate. Local tax rates vary materially within each state. For your actual bill, use your county/municipal tax rate × your assessed value (which may differ from market value, especially in CA under Prop 13 or in IL with the 33⅓% ratio). See the cornerstone for your state for precise math.
Limitations
- CA Prop 13: long-tenured owners pay tax on factored base year value, not market value. The estimator's market-value × effective rate calculation overstates their bill.
- IL local variation: Cook County's 10% classification ordinance + state equalization multiplier produces materially different math than other IL counties' 33⅓% ratio. The estimator uses statewide-average effective rate.
- Local-option exemptions: many TX, IL, NY localities adopt additional homestead exemptions on top of state mandates. Estimator does not incorporate these.
- Special districts: MUDs (TX), Mello-Roos (CA), school district variations (IL/NJ/NY) all add to the actual bill. Estimator approximates the total via effective-rate average.
- Veterans / disabled-veteran exemptions: not modeled. The 100% Disabled Veteran exemption (full exemption in most states) is the largest single lever and not captured here.
Related tools
State cornerstones